Three Pin Plug
Trending Questions
Name the three wires used to carry electricity from one place to another. Explain.
What safety precautions should be taken while using electricity/electrical appliances?
What precautions should be taken to avoid the overloading of domestic electric circuits?
What are the advantages of the ring system of wiring?
Why is the earth pin thicker and longer than the live and the neutral pins?
It is dangerous to connect the switch in the neutral wire. Explain your answer.
State four precautions to be taken while using electricity.
(a) Lights and fans? (b) Appliances of 2kW or more power?
What precautions you will take against electric fire and shock?
What is meant by load of an electrical circuit?
Which is not the characteristic of a fuse wire?
It has high resistance
It has low melting point
It has low resistance
It is an alloy of lead and tin
Our household’s circuits are connected in parallel. Explain.
To which of the three connecting wires in a household circuit should the switch be connected?
Switch should be connected to the fuse wire.
Switch should be connected to the earthing wire.
Switch should be connected to the live wire.
Switch should be connected to the neutral wire.
When live wire comes in direct contact with the neutral wire, then
Short circuiting happens
All of these.
Melting of the fuse happens
Overloading happens
What purpose is served by the terminals of a three-way pin plug? Draw a diagram and name the pins.
Why is switch placed in a live wire?
Live wire is also called ______ wire.
How does a fuse protect an electrical circuit?
What is the advantage of the third wire of earth connection in domestic appliances?
What is the pole fuse? Write down its current rating.
What are the disadvantages of a tree system of wiring?
The electrical gadgets used in a house such as bulbs, fans, heater etc, are always connected in parallel NOT in series. Give two reasons for connecting them in parallel.
The diagram in Fig. 9.27 shows a three-pin socket marked as 1, 2 and 3.
(a) Identify and write live (L), neutral (N) and earth (E) against the correct number.
(b) To which part of the appliance is the terminal 1 connected?
(c) To which wire joined to 2 or 3, is the fuse connected and why?
State one advantage of using the main switch in house wiring.
Electricity can be dangerous if not used safely-Explain
How does earthing protect a user from receiving an electric shock?
In which wire in an ac housing circuit is the switch introduced to operate the lights?
